5 x 4 with a 2-5/16" backspacing?

Just wondering if these SHOULD fit w/o a spacer, and if they'd fit w/o sticking out

 

Whether you need a spacer depends on the design of the center section of the wheel, not the backspace. Welds, for example, don't fit, Bogart and Centerlines do.

A 15x4" wheel is about 5" wide. If the backspace is 2.32", the front space is 2.68". That puts the outside of the tire about 0.40" further out from where a stock wheel/tire sits, and that is not near the outside of the fender. If you have to add a spacer, it will move it out.... use a 5/16" spacer and the outside edge of the tire is now about where the wheel/tire would be on a stock WS6/SS wheel, but with the skinny tire, its going to "look" like its outside the fender.